Which of the following groups does NOT belong to the Alveolates?
a. apicomplexans
b. diatoms
c. dinoflagellates
d. parasitic ciliates
e. free-living ciliates
B
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What pigments are present in the samples derived from individuals that are homozygous recessive for shell color?
a. Red and grey b. Yellow and grey c. Red and yellow d. Red, yellow, and grey
Cytokinins are water-soluble hormones produced in the root apical meristem and stimulate the growth of lateral buds. How do cytokinins reach the lateral buds?
A. by diffusion as a gas B. through the phloem C. through the xylem D. through the phloem and xylem E. through the phloem and by diffusion as a gas
In the Hardy-Weinberg equation P + H + Q = 1, what does "Q" represent?
A) total number of individuals in the population B) frequency of heterozygotes C) frequency of dominant homozygotes D) frequency of recessive homozygotes
The anamnestic response to an antigen results from
A) a latent period. B) prior antigen exposure. C) TC cell activity. D) antiserum.